Revision 102

Basic elfboot functionality is in now. 
We're trying to avoid the bounce buffer mess, which is really complex, 
by running elfboot out of the boot block. This code includes a really 
dumb allocator in elfboot which may or may not work. It basically
allocates off the elfboot() stack. 

This builds, but elfboot is not tested. That's next. 
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>